Walker PTT-K-M-EM-80-00 Push-To-Talk Telephone Black Handset

Walker PTT‑K‑M‑EM‑80‑00 – Heavy‑Duty Push‑To‑Talk Handset for Nortel Meridian Systems

The Walker PTT‑K‑M‑EM‑80‑00 is a professional, rugged push‑to‑talk (PTT) handset designed for use with Nortel Meridian phone systems (Meridian 1, SL‑1, Norstar) and compatible dispatch consoles. Finished in durable black, this handset features a large tactile PTT button, a noise‑canceling electret microphone (EM), and a reinforced coiled cord, making it ideal for security dispatch centers, emergency response rooms, and industrial control rooms. Built to withstand heavy daily use, the PTT‑K‑M‑EM‑80‑00 provides clear, instant voice communication in half‑duplex mode, turning your Meridian system into an efficient PTT network.

How It Works

The handset connects directly to a Nortel Meridian console, paging adapter, or telephone system via the included modular cord (RJ12 or RJ45, depending on the adapter). When the user presses and holds the large, glove‑friendly PTT button, the electret microphone is activated, transmitting the user’s voice to the selected talk group or individual (as programmed by the system). Releasing the button returns the handset to listen‑only mode. The handset works in half‑duplex PTT mode, typical for dispatch operations. The noise‑canceling electret microphone filters out background noise, while the dynamic receiver provides clear incoming audio. For a complete communication center, pair this handset with a reliable corded headset from FindHeadsets – ideal for staff who need to monitor multiple channels while keeping their hands free.

Compatibility & Design

The Walker PTT‑K‑M‑EM‑80‑00 is specifically designed for Nortel Meridian 1, Meridian SL‑1, Norstar systems, and other Meridian PBX consoles that support PTT handsets. It is a direct replacement for legacy handsets on Meridian operator positions and paging adapters. The handset is constructed from high‑impact, flame‑retardant ABS plastic with a reinforced, kink‑resistant coiled cord (approx. 2.5 meters retracted, extending to over 6 meters). The PTT button is large, tactile, and rated for thousands of cycles. The electret microphone (EM) offers excellent voice pickup and noise cancellation. The receiver is dynamic for reliability. The handset includes a hook switch for cradle operation. It operates from -20°C to 60°C and is IP54 rated for dust and splash resistance. The black finish is scuff‑resistant. Wiring follows standard polarity.

Why Choose This Product

Standard telephone handsets lack the instant push‑to‑talk functionality required in fast‑paced dispatch environments. The PTT‑K‑M‑EM‑80‑00 turns your Meridian system into an efficient voice communication tool, reducing response times. The rugged construction outlasts consumer‑grade handsets, lowering replacement costs. The noise‑canceling electret microphone is critical in noisy dispatch centers, ensuring every word is understood. The long, reinforced cord allows operators to move several meters from their console while staying connected. For facility managers, this handset is a direct drop‑in replacement for worn or damaged Meridian PTT units, with simple plug‑and‑play installation.